Frank sheridan



(No'Model.)

F. SHERIDAN.

MEANSAND ONSTRUGTIN FOR INSBRTNG FITTINGS UNDER PRESSURE. No. 571,077.Patented Nov. 10, 1896. I

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UNITED STATES PATENT Orricn.

FRANK SIIERIDAN, OF COVINGTON, KENTUCKY, ASSIGNOR OF ONE-HALF TO VILLIAME. YAGER, OF SAME PLACE.

MEANS AND CONSTRUCTION FOR INSERTING FITTINGS UNDER PRESSURE.

SPECIFICATION forming part of Letters Patent No. 571,07*?, datedNovember 10, 1896. Application filed June 6, 1896. Serial No. 594,504.(No model.)

To a/ZZ whom t may concern: Figure l, in a longitudinal horizontal sec-Beit known that I, FRANK SHERIDAN, a citition, shows a stop-cock of apipe-line disconzen of the United States, andaresident of Cov- -nectedat one side and the pipe bent aside to ington, Kenton county, State ofKentucky, give access to the cock. Fig. 2 shows in a 5 have inventedcertain new and useful Imvertical longitudinal section the next step ofprovenients in the Means and Construction to the procedure. Fig. 3 showsin a similar view Insert Fittings under Pressure; and I do dethe'partsin a position which permits removal clare the following to be a clear,full, and exof the cock. Fig. 4 shows the end of the pipe 6o actdescription of the invention, such as will temporarily closed and thecock removed.

lo enable others skilled inthe art to which it ap- Fig. 5 shows in a topview all parts connected pertains to make and use the same, attention inoperative position and an additional membeing called to the accompanyingdrawings, ber applied to make the procedure more cnwith thereference-numerals marked thereon, venient, particularly where the pipesare unwhich form a part of this specification. der high pressure.

I5 This invention relates to means and con- At present these cocks areusually construction for the purpose of inserting and renected byso-called wiped joints directly to placing valves, cocks, and similarstop-iittings the leaden pipes at either side. If replacing in generalwhile the medium which these tor repairs are required, it is necessaryafter 7o tngs control is charged and under pressure. .the water has beenshut off, generally be- 2o Its use is more particularly intended incontween a whole block, to cut the pipeand make nection with so-calledstop-cocks, as they a new, connection by similar joints. It reoccur inthe service-pipes of Waterworks sysquires considerable time and skill towipe a tems, where they control the branch pipes joint of which thereare atleast two, and beleading from mains to the private consumers.sides there is the waste in lead pipe which 25 Replacing or repairing ofthese stop-cocks has to be cut out. To obviate this kind of a when theybecome leaky and worn out is joint, I propose to connect the stop-cock 7to always a troublesome undertaking, particu-` the leaden pipes S bycouplings 9, secured to larly for the reason that generally a part ofthe nipples lO of the stopcock by threaded 8o the main has to be shutoff, thereby deprivcaps or unions 1l. The outer ends of the two 3o ingalso others ofthe use of water until the recouplings are permanentlysecured by wiped pairs or replacing is accomplished. joints l2 to theleaden pipes 8; but these The object of my invention is therefore tojoints when formed once need never be dislimit-this resultinginconvenience to that supturbed any more, as will be presently underplyonly which depends on the one pipe where stood.

3 5 the cock is located, and as to that particular To obtain awater-tight joint, the inner pipe it reduces the time required to maket-he ends of the couplings may it into the nipples insertion or repairsconsiderably and simplil0 of the cocks by a ground joint 13, or a `fiesthe whole procedure. washer 14 may be interposed. The inside of 9o Itconsists in part of a coupling specifically the couplings near theirinner end is threaded 4o prepared for the purpose and forming a part4for a suitable distance.

of the cock and pipe system, remaining per- The cock itself is of theordinary wellmanently in position, and of implements known type with around passage-'way 15. which work in conjunction with the parts If nowin due course of time it becomes nec- Iirst mentioned, but are onlytemporarily in essary to repair or replace one of these cocks 45position, assuming, therefore, more the charfor any reason whatever, itsremoval is accomacter of tools. plished as follows: The cock is closedagainst In the following specification, and particuthe pressure and thepipe at the other side larly pointed out in the claims, is found a isdisconnected, which is done by simply unroo full description of theinvention, its procescrewing the union 1l thereat and slipping it 50dure, parts, and construction, which latter is back on its coupling,after which the leaden also illustrated in the accompanying draw- `pipebecomes free and may be bent aside to ings, in whichvbe out of the way,as shown in Fig. l. Next a stop 16 is introduced into the now opennipple of the cock, and a cap 17, perforated to admit the shank 1S ofthe stop, is screwed onto the nipple of the cock, taking the place ofthe removed union 11 and closing again the open end of the cock. (SeeFig. 2.) A stuffing-box 1.) may be provided where the shank passesthrough the cap. XVith the parts in this condition the cock may now bereadily opened, because the escape of water is prevented by cap 17. Thecock being opened, stop 16 is now pushed through the open passage-way 15and put in engagement with the inner end of the opposite coupling,closing the same, as shown in Fig. 3. For the purpose of such engagementthe stop is threaded externally and fits the internal thread at theinner end of this opposite coupling. A suitable removable handle orhandwheel 26 is provided to operate and turn the stop. This connection,which thus shuts oit the water, being made, the whole cock may nowreadily be taken ofi' after the union holding it yet at the other sideis unscrewed, because stop 16 closes the pipe for the time being andprevents the water from pouring out. This leaves the parts as shown inFig. 4L. For replacing the new cock the procedure is similar, only thatits different steps are performed in converse order. Thus the new cockis slipped over the stop and connected to the closed coupling. Cap 17havin g been taken off from the removed cock, is then passed in overshank 1S of the stop, and the open nipple of the new cock is closed,putting the parts again in position, as shown in Fig. 3. This permitswithdrawal of stop 16 from the coupling, which is kept closed untilthen, such withdrawal being sufficient to clear the passage-way of thecock and permit the latter itself to be closed. Cap 17 and stop 16 arenow entirely removed, after which the end of the other pipe is bent backinto position again and connected by the union, as may be readilyunderstood.

For larger pipes or where the pressure is considerable a hooked brace 24may be provided, which is engaged with projections 25 on cap 17 and hasa screw-shank 26 seated in the end 27. By means of a sliding sleeve 2Sit is connected to the end of shank 1S of the stop, and the latter maynow be readily advanced against the pressure and into the screw-threadedcoupling.

As will be seen, time, work, and expenses are considerably reduced, nosolder joints are required, no leaden pipes need to be cut out, and theinconveniences and disturbances resulting from turning off the water arelimited to the one pipe alone.

Under certain conditions and when no leaden pipe is used couplings 9might represent simply the ends of the pipes themselves.

HavingV described my invention, I claim as new 1. In a stop-fittingadapted to be applied under pressure and detachably connected to thepipe by unions and couplings, a stop 16 adapted to be passed through thepassageway of the stop-iitting after the same is rendered accessible bydisconnection from the pipe at one side and capable of closing the openend of the pipe or coupling at the other side and a cap to close thedisconnected end of the stop-fitting.

2..An implement 'for connecting stop-iittings to pipes while charged andwhere such fittings are detachably connected to the pipe by couplings orotherwise, such implement consisting of a stop 16 carried by a shank 18and a cap 17 both adapted to be temporarily connected, the first for thepurpose of closing the open end of the pipe, the other to close the openend of the stop-tting and all to be applied in the manner described.

In a construction to insert iittings in pipes While charged, thecombination of a cock or similar stop-iitting detachably connected toitspipe by couplings 9 and unions 1l, the inner ends of the couplings beingscrewthreaded, a stop 16 threaded to fit the threaded end of thecouplings and adapted to be passed through the passage-way controlled bythe stop-iitting after the same is disconnected at one side and thusopened for access, a cap 17 to temporarily close the open end of thestop-'fitting and a shank on stop 16 and passl ing through cap 17 tomanipulate it.

4c. An implement for inserting stop-fittings into pipes while chargedand where such {ittin gs are detachably connected to the pipe bycouplings or otherwise, such implement consisting of a stop 16 carriedby a shank 18 and screw-threaded to iit the correspondinglythreaded endof one of the permanently-connected couplings for the purpose of closingthereby the open pipe, and a cap 17 fitted to close the open end of thestop-iitting while stop 16 is being inserted to close the open end ofthe pipe and a shank passin through cap 17 to manipulate stop 16.

5. An implement for inserting stop-iittings into pipes while charged andwhere such iittin gs are detachably connected to the pipe by couplingsor otherwise, such implement consisting ot' a stop 16 carried by a shank1S, a cap 17, having projections 25, fitted to close the open end of thestop-tting while stop 16 is introduced, a shank 1S on stop 16 passingthrough cap 17 a brace 21 adapted to be temporarily connected toprojections 25 on cap 1.7 and a screw-shank 26 supported in the end ofbrace 24 and adapted for connection to shank 1S for the purpose ofmanipulating stop 16.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

FRANK SHERIDAN. Witnesses:

W. E. YAGLER, C. SIPENGEL.

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